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Diffstat (limited to 'eclass/fortran-int64.eclass')
| -rw-r--r-- | eclass/fortran-int64.eclass | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/eclass/fortran-int64.eclass b/eclass/fortran-int64.eclass new file mode 100644 index 000000000..ea46d0c37 --- /dev/null +++ b/eclass/fortran-int64.eclass @@ -0,0 +1,288 @@ +# Copyright 1999-2014 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Header: $ + +# @ECLASS: fortran-int64.eclass +# @MAINTAINER: +# sci team <sci@gentoo.org> +# @AUTHOR: +# Author: Mark Wright <gienah@gentoo.org> +# @BLURB: flags and utility functions for building Fortran multilib int64 +# multibuild packages +# @DESCRIPTION: +# The fortran-int64.eclass exports USE flags and utility functions +# necessary to build packages for multilib int64 multibuild in a clean +# and uniform manner. + +if [[ ! ${_FORTRAN_INT64_ECLASS} ]]; then + +# EAPI=4 is required for meaningful MULTILIB_USEDEP. +case ${EAPI:-0} in + 4|5) ;; + *) die "EAPI=${EAPI} is not supported" ;; +esac + +inherit multilib-build toolchain-funcs + +# @ECLASS-VARIABLE: EBASE_PROFNAME +# @DESCRIPTION: +: ${EBASE_PROFNAME:=blas} + +# @ECLASS-VARIABLE: ESTATIC_MULTIBUILD +# @DEFAULT_UNSET +# @DESCRIPTION: +# If this is set, then do separate static multibuilds. + +INT64_SUFFIX="int64" +STATIC_SUFFIX="static" + +# @FUNCTION: fortran-int64_is_int64_build +# @DESCRIPTION: +# Returns shell true if the current multibuild is a int64 build, +# else returns shell false. +# @CODE +# $(fortran-int64_is_int64_build) && \ +# openblas_abi_cflags+=" -DOPENBLAS_USE64BITINT" +# @CODE +fortran-int64_is_int64_build() { + debug-print-function ${FUNCNAME} "${@}" + if [[ "${MULTIBUILD_ID}" =~ "_${INT64_SUFFIX}" ]]; then + return 0 + else + return 1 + fi +} + +# @FUNCTION: fortran-int64_is_static_build +# @DESCRIPTION: +# Returns shell true if ESTATIC_MULTIBUILD is true and the current multibuild +# is a static build, else returns shell false. +# @CODE +# if $(fortran-int64_is_static_build); then +# ... +# @CODE +fortran-int64_is_static_build() { + debug-print-function ${FUNCNAME} "${@}" + if [[ "${MULTIBUILD_ID}" =~ "_${STATIC_SUFFIX}" ]]; then + return 0 + else + return 1 + fi +} + +# @FUNCTION: fortran-int64_get_profname +# @USAGE: [<profname>] +# @DESCRIPTION: Return the pkgbuild profile name, without the .pc extension, +# for the current fortran int64 build. If the current build is not an int64 +# build, and the ebuild does not have dynamic, threads or openmp USE flags or +# they are disabled, then the profname is ${EBASE_PROFNAME} or <profname> if +# <profname> is specified. +# +# Takes an optional <profname> parameter. If no <profname> is specified, uses +# ${EBASE_PROFNAME} as the base to calculate the profname for the current +# build. +fortran-int64_get_profname() { + debug-print-function ${FUNCNAME} "${@}" + local profname="${1:-${EBASE_PROFNAME}}" + if has dynamic ${IUSE} && use dynamic; then + profname+="-dynamic" + fi + if $(fortran-int64_is_int64_build); then + profname+="-${INT64_SUFFIX}" + fi + # choose posix threads over openmp when the two are set + # yet to see the need of having the two profiles simultaneously + if has threads ${IUSE} && use threads; then + profname+="-threads" + elif has openmp ${IUSE} && use openmp; then + profname+="-openmp" + fi + echo "${profname}" +} + +# @FUNCTION: fortran-int64_get_blas_provider +# @DESCRIPTION: Returns the eselect blas provider for the current build. +# Which is blas-int64 if called from an int64 build, or blas otherwise. +# @CODE +# local profname=$(fortran-int64_get_profname) +# local provider=$(fortran-int64_get_blas_provider) +# alternatives_for ${provider} $(fortran-int64_get_profname "reference") 0 \ +# /usr/$(get_libdir)/pkgconfig/${provider}.pc ${profname}.pc +# @CODE +fortran-int64_get_blas_provider() { + debug-print-function ${FUNCNAME} "${@}" + local provider_name="blas" + if $(fortran-int64_is_int64_build); then + provider_name+="-${INT64_SUFFIX}" + fi + echo "${provider_name}" +} + +# @FUNCTION: fortran-int64_get_cblas_provider +# @DESCRIPTION: Returns the eselect cblas provider for the current build. +# Which is cblas-int64 if called from an int64 build, or cblas otherwise. +# @CODE +# local profname=$(fortran-int64_get_profname) +# local provider=$(fortran-int64_get_cblas_provider) +# alternatives_for ${provider} $(fortran-int64_get_profname "reference") 0 \ +# /usr/$(get_libdir)/pkgconfig/${provider}.pc ${profname}.pc +# @CODE +fortran-int64_get_cblas_provider() { + debug-print-function ${FUNCNAME} "${@}" + local provider_name="cblas" + if $(fortran-int64_is_int64_build); then + provider_name+="-${INT64_SUFFIX}" + fi + echo "${provider_name}" +} + +# @FUNCTION: fortran-int64_get_lapack_provider +# @DESCRIPTION: Returns the eselect lapack provider for the current build. +# Which is lapack-int64 if called from an int64 build, or lapack otherwise. +# @CODE +# local profname=$(fortran-int64_get_profname) +# local provider=$(fortran-int64_get_lapack_provider) +# alternatives_for ${provider} $(fortran-int64_get_profname "reference") 0 \ +# /usr/$(get_libdir)/pkgconfig/${provider}.pc ${profname}.pc +# @CODE +fortran-int64_get_lapack_provider() { + debug-print-function ${FUNCNAME} "${@}" + local provider_name="lapack" + if $(fortran-int64_is_int64_build); then + provider_name+="-${INT64_SUFFIX}" + fi + echo "${provider_name}" +} + +# @FUNCTION: fortran-int64_get_blas_profname +# @DESCRIPTION: Returns the pkg-config file name, without the .pc extension, +# for the currently selected blas-int64 module if we are performing an int64 +# build, or the currently selected blas module otherwise. +# @CODE +# cat <<-EOF > ${profname}.pc +# ... +# Requires: $(fortran-int64_get_blas_profname) +# ... +# @CODE +fortran-int64_get_blas_profname() { + debug-print-function ${FUNCNAME} "${@}" + local blas_provider=$(fortran-int64_get_blas_provider) + local blas_symlinks=( $(eselect "${blas_provider}" files) ) + local blas_prof_symlink="$(readlink -f "${blas_symlinks[0]}")" + local blas_prof_file="${blas_prof_symlink##*/}" + echo "${blas_prof_file%.pc}" +} + +# @FUNCTION: fortran-int64_get_xblas_profname +# @DESCRIPTION: Returns the xblas pkg-config file name, without the .pc extension, +# for the current build. Which is xblas-int64 if we are performing an int64 +# build, or xblas otherwise. +# @CODE +# cat <<-EOF > ${profname}.pc +# ... +# Requires: $(fortran-int64_get_xblas_profname) +# ... +# @CODE +fortran-int64_get_xblas_profname() { + debug-print-function ${FUNCNAME} "${@}" + local xblas_provider="xblas" + if $(fortran-int64_is_int64_build); then + xblas_provider+="-${INT64_SUFFIX}" + fi + echo "${xblas_provider}" +} + +# @FUNCTION: fortran-int64_get_fortran_int64_abi_fflags +# @DESCRIPTION: Return the Fortran compiler flag to enable 64 bit integers for +# array indices if we are performing an int64 build, or the empty string +# otherwise. +# @CODE +# src_configure() { +# local MULTIBUILD_VARIANTS=( $(fortran-int64_multilib_get_enabled_abis) ) +# my_configure() { +# export FCFLAGS="${FCFLAGS} $(get_abi_CFLAGS) $(fortran-int64_get_fortran_int64_abi_fflags)" +# econf $(use_enable fortran) +# } +# multibuild_foreach_variant run_in_build_dir fortran-int64_multilib_multibuild_wrapper my_configure +# } +# @CODE +fortran-int64_get_fortran_int64_abi_fflags() { + debug-print-function ${FUNCNAME} "${@}" + local openblas_abi_fflags="" + if $(fortran-int64_is_int64_build); then + openblas_abi_fflags+="-fdefault-integer-8" + fi + echo "${openblas_abi_fflags}" +} + +# @FUNCTION: fortran-int64_multilib_get_enabled_abis +# @DESCRIPTION: Returns the array of multilib int64 and optionally static +# build combinations. Each ebuild function that requires multibuild +# functionalits needs to set the MULTIBUILD_VARIANTS variable to the +# array returned by this function. +# @CODE +# src_prepare() { +# local MULTIBUILD_VARIANTS=( $(fortran-int64_multilib_get_enabled_abis) ) +# multibuild_copy_sources +# } +# @CODE +fortran-int64_multilib_get_enabled_abis() { + debug-print-function ${FUNCNAME} "${@}" + local MULTILIB_VARIANTS=( $(multilib_get_enabled_abis) ) + local MULTILIB_INT64_VARIANTS=() + local i + for i in "${MULTILIB_VARIANTS[@]}"; do + if use int64 && [[ "${i}" =~ 64$ ]]; then + MULTILIB_INT64_VARIANTS+=( "${i}_${INT64_SUFFIX}" ) + fi + MULTILIB_INT64_VARIANTS+=( "${i}" ) + done + local MULTIBUILD_VARIANTS=() + if [[ -n ${ESTATIC_MULTIBUILD} ]]; then + local j + for j in "${MULTILIB_INT64_VARIANTS[@]}"; do + use static-libs && MULTIBUILD_VARIANTS+=( "${j}_${STATIC_SUFFIX}" ) + MULTIBUILD_VARIANTS+=( "${j}" ) + done + else + MULTIBUILD_VARIANTS="${MULTILIB_INT64_VARIANTS[@]}" + fi + echo "${MULTIBUILD_VARIANTS[@]}" +} + +# @FUNCTION: fortran-int64_ensure_blas +# @DESCRIPTION: Check the blas pkg-config files are available for the currently +# selected blas module, and for the currently select blas-int64 module if the +# int64 USE flag is enabled. +# @CODE +# src_prepare() { +# fortran-int64_ensure_blas +# ... +# @CODE +fortran-int64_ensure_blas() { + local MULTILIB_INT64_VARIANTS=( $(fortran-int64_multilib_get_enabled_abis) ) + local MULTIBUILD_ID + for MULTIBUILD_ID in "${MULTILIB_INT64_VARIANTS[@]}"; do + local blas_profname=$(fortran-int64_get_blas_profname) + $(tc-getPKG_CONFIG) --exists "${blas_profname}" \ + || die "${PN} requires the pkgbuild module ${blas_profname}" + done +} + +# @FUNCTION: fortran-int64_multilib_multibuild_wrapper +# @USAGE: <argv>... +# @DESCRIPTION: +# Initialize the environment for ABI selected for multibuild. +# @CODE +# multibuild_foreach_variant run_in_build_dir fortran-int64_multilib_multibuild_wrapper my_src_install +# @CODE +fortran-int64_multilib_multibuild_wrapper() { + debug-print-function ${FUNCNAME} "${@}" + local v="${MULTIBUILD_VARIANT/_${INT64_SUFFIX}/}" + local ABI="${v/_${STATIC_SUFFIX}/}" + multilib_toolchain_setup "${ABI}" + "${@}" +} + +_FORTRAN_INT64_ECLASS=1 +fi |